MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with numerous URLs pointing to compromised CMS uploads and disposable hosting. These links likely serve to redirect users to phishing sites or download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://bjaimama.com/data/upload/2021/06/file/202106141734372797.pdf
- http://decamiones.com/userfiles/file/mamamadunileg.pdf
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/b24130996fba8bbfe6301bde0a37081a/36095179826.pdf
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160960c8a20920---mojojabijodimafigojoxev.pdf
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b83753499bd---pafusorojemugen.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16072d5b3b8d98---puzemadidazoluron.pdf
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/ddm6gi6obu2bj7j14o8r4k6ct1/siwigunasatatuvujo.pdf
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/s8v99t9dlot3m1a0mt3tcav6km/74808876353.pdf
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c47525ab274---88124437954.pdf
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/056160294c0f93652bfa3aa5941baaf9/92022927241.pdf
- https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096d47f645e0---ruzubanopesop.pdf
- https://amrapalispot.com/userfiles/file/12949724078.pdf
- http://gallery4walls.com/upload/editer/file/93502551622.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160ad99b8904a3---zumapawemesivilemezur.pdf
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/aagl2sf3mga35vokpggpt2i2g1/xepudidijuvemipe.pdf
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/863773708a286523aab064863cb98bf0/rokekamasetibulupewo.pdf
- https://watertorens.nl/userfiles/file/36180289795.pdf
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/160beb8dcdf972---pubutirutubewoxi.pdf
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e4475a964c---latokojubasozujovixiwige.pdf
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bad7221191c---69549429928.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=list+of+bronsted+lowry+acids+and+bases
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e79d.binfefd79ec2a543709072cfdde62e3596a5a238624a84043ff9300e97f25c0f022 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE79D | 10768 bytes |
font_01_sfnt_off0001009e.bina4fbe7eb6403259b246e5dc02e5ab787cdd62d512bef7505bdd75a2382e0ea14 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1009E | 16840 bytes |
font_02_sfnt_off00012cbb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CBB | 16792 bytes |
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